Heat transfer augmentation in a tube using nanofluids under constant heat flux boundary condition: A review

Singh, Vandita; Gupta, Munish Kumar

doi:10.1016/j.enconman.2016.06.035

Cited by 65 publications

(4 citation statements)

References 93 publications

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“…Recently, various experimental and numerical studies, categorized as i) preparation, characterization and modelling (Suresh et al 2011;Kumar et al 2016;Sundar et al 2017b) ii) rheological behavior (Afrand et al 2016;Asadi and Asadi 2016;Zareie et al 2017) iii) thermal conductivity (Esfe et al 2015a,b;Harandi et al 2016;Toghrai et al 2016;Afrand 2017;Vafaei et al 2017) and iv) convective heat transfer applications (Suresh et al 2012;Madhesh et al 2014;Nimmagadda and Venkatasubbaiah 2015;Kalidasan and Kanna 2017), have been conducted on different hybrid nanofluids by several researchers and some of these studies have been reviewed (Sarkar et al 2015;Singh and Gupta 2016;Sidik et al 2016;Sundar et al 2017a;Leong et al 2017;Minea 2017) in the available literature. Mehrali at al.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Analysis of Laminar Forced Convection and Entropy Generation of a Diamond-Fe3O4/Water Hybrid Nanofluid in a Rectangular Minichannel

Uysal

Gedik

Chamkha

2019

JAFM

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The convective heat transfer and entropy generation of diamond-Fe3O4/water hybrid nanofluid through a rectangular minichannel is numerically investigated under laminar flow conditions. Nanoparticle volume fractions for diamond-Fe3O4/water hybrid nanofluid are in the range 0.05-0.20% and Reynolds number varies from 100 to 1000. The finite volume method is used in the numerical computation. The results obtained for diamond-Fe3O4/water hybrid nanofluid are compared with those of diamond/water and Fe3O4/water conventional nanofluids. It is found that 0.2% diamond-Fe3O4 hybrid nanoparticle addition to pure water provides convective heat transfer coefficient enhancement of 29.96%, at Re=1000. The results show that diamond-Fe3O4/water hybrid nanofluid has higher convective heat transfer coefficient and Nusselt number when compared with diamond/water and Fe3O4/water conventional nanofluids. For diamond-Fe3O4/water hybrid nanofluid, until Re=600, the lowest total entropy generation rate values are obtained for 0.20% nanoparticle volume fraction. However, after Re=800, diamond-Fe3O4/water hybrid nanofluid with 0.20% nanoparticle volume fraction has the highest total entropy generation rate compared to other nanoparticle volume fractions. A similar pattern emerges from the comparison with diamond/water and Fe3O4/water conventional nanofluids. For 0.2% nanoparticle volume fraction, diamond-Fe3O4/water hybrid nanofluid and diamond/water nanofluid have their minimum entropy generation rate at Re=500 and at Re=900, respectively. Moreover, this minimum entropy generation rate point changes with nanoparticle volume fraction values of nanofluids.

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Section: Introductionmentioning

confidence: 99%

A Numerical Analysis of Laminar Forced Convection and Entropy Generation of a Diamond-Fe3O4/Water Hybrid Nanofluid in a Rectangular Minichannel

Uysal

Gedik

Chamkha

2019

JAFM

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“…A convective heat transfer can be enhanced with nanoparticles suspended in base water since it increases the thermal conductivity of the water-nanoparticles suspension, furthermore, the thermal conductivity depends on the particle volume fraction as reported by Xuan and Li (2000). In convective heat transfer, the important parameters that influence significantly its performances are heat transfer coefficient and Reynolds number, but in convective nanofluids heat transfer, the heat transfer characteristics depend also on the volume fraction of nanoparticles in which it increases with the increase of volume fraction (Singh and Gupta, 2016). For laminar flow, the influence of concentration of TiO2 nanoparticle in water-based fluid which flows in the triangle duct with uniform heat flux is given by Jodat (2014).…”

Section: Introductionmentioning

confidence: 97%

Experimental Study of Convective Heat Transfer of Alumina Oxide Nanofluids in Triangle Channel With Uniform Heat Flux

Sahim¹,

Puspitasari²,

Nukman³

2021

Frontiers in Heat and Mass Transfer

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The recent trend application of the nanofluids is used in some industrial equipment such as tube heat exchanger, double pipe exchanger and shell-tube type heat exchanger. The Triangle tubes may be used in the heat exchanger. Thus, this experimental study reports the convective heat transfer performance of the aluminum oxide-water nanofluids flowing in the triangle channel. In this study, the amount of the volume fraction of the Al 2 O 3 used was 0.1 %, 0.2 %, and 0.3 respectively in base-water as the nanofluids and the Reynolds numbers were varied from about 1000 to 7000. The channel was heated by the electric wire coiled along the channel with constant heat flux. The length and the hydraulic diameter of the triangular channel were 750 mm and 7.1 mm respectively. The DC variable speed pump was used to drive the nanofluids in the channel. Five thermocouples were soldered at the outer surface of the channel to measure the surface temperature. At the inlet and outlet of the channel were attached the thermocouples to measure the inlet and the outlet temperature of the nanofluids. The heat absorbed by the fluid was then released in the cooling tower which used an induced draft fan to convince that the nanofluids temperature decreased before entering the inlet section of the channel. The heat transfer characteristics of the nanofluids are compared to that of pure water. The results show that the heat transfer increase with the increase of the Reynolds number and the volume fraction. The increase of heat transfer varies from about 11% to 36%.

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“…In nuclear reactors, water has great significance because it acts as coolant internally and neutron moderator externally, according to the type of nuclear reactor (Attia, 2015). Advancement in nanotechnology has produced new fluids that transfer heat through suspended nano-particles within them, are called nano-fluids (Singh and Gupta, 2016). Nano-fluids are basically suspensions of nano-particles in base fluids (Saidur, et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Use of Nano Fluids in Nuclear Technology: A Review

Iqbal

Zafar

Ijaz

2021

Pak. j. sci. ind. res. Ser. A: phys. sci.

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Nuclear energy is the most important source to produce electricity. The production processes are very important for reducing risks and increasing the efficiency. Nano-fluids also have the potential to transfer heat with improved thermo-physical properties which can be applicable in many devices for better performance. Advancement in nanotechnology develops new fluids which transfer heat called nano-fluids. So, for heat exchange in the core of nuclear reactors, nano-fluids are used because of their unique heat transfer properties. For significant improvement in properties, the modest concentration of nano-particles is required. Recent research is more about behaviour of nano-fluids to utilize their unique properties. Heat transfer property is very important for industrial applications, nuclear reactors, transportation, and electronics and also in biomedicine. Nano-fluid acts like smart fluid, where heat transfer property can be controlled. This review establishes a focus on the wide range of recent and future uses about nano-fluids, related to their improved properties of heat transfer that may be controllable and other specific properties of nano- fluids.

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Heat transfer augmentation in a tube using nanofluids under constant heat flux boundary condition: A review

Cited by 65 publications

References 93 publications

A Numerical Analysis of Laminar Forced Convection and Entropy Generation of a Diamond-Fe3O4/Water Hybrid Nanofluid in a Rectangular Minichannel

A Numerical Analysis of Laminar Forced Convection and Entropy Generation of a Diamond-Fe3O4/Water Hybrid Nanofluid in a Rectangular Minichannel

Experimental Study of Convective Heat Transfer of Alumina Oxide Nanofluids in Triangle Channel With Uniform Heat Flux

Use of Nano Fluids in Nuclear Technology: A Review

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